EP0910875A4 - Ceramic filter with a coplanar shield - Google Patents
Ceramic filter with a coplanar shieldInfo
- Publication number
- EP0910875A4 EP0910875A4 EP97925454A EP97925454A EP0910875A4 EP 0910875 A4 EP0910875 A4 EP 0910875A4 EP 97925454 A EP97925454 A EP 97925454A EP 97925454 A EP97925454 A EP 97925454A EP 0910875 A4 EP0910875 A4 EP 0910875A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- ceramic filter
- coplanar shield
- coplanar
- shield
- ceramic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/202—Coaxial filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2056—Comb filters or interdigital filters with metallised resonator holes in a dielectric block
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/04—Coaxial resonators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/10—Dielectric resonators
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US677154 | 1984-12-03 | ||
US08/677,154 US5745018A (en) | 1996-07-09 | 1996-07-09 | Ceramic filter with a coplanar shield |
PCT/US1997/007559 WO1998001918A1 (en) | 1996-07-09 | 1997-05-05 | Ceramic filter with a coplanar shield |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0910875A1 EP0910875A1 (en) | 1999-04-28 |
EP0910875A4 true EP0910875A4 (en) | 1999-08-18 |
EP0910875B1 EP0910875B1 (en) | 2002-07-31 |
Family
ID=24717559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97925454A Expired - Lifetime EP0910875B1 (en) | 1996-07-09 | 1997-05-05 | Ceramic filter with a coplanar shield |
Country Status (7)
Country | Link |
---|---|
US (1) | US5745018A (en) |
EP (1) | EP0910875B1 (en) |
JP (1) | JP3935951B2 (en) |
KR (1) | KR100323013B1 (en) |
DE (1) | DE69714444T2 (en) |
DK (1) | DK0910875T3 (en) |
WO (1) | WO1998001918A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19903855B4 (en) * | 1999-02-01 | 2010-04-15 | Epcos Ag | antenna Combiner |
KR100343778B1 (en) | 1999-12-20 | 2002-07-20 | 한국전자통신연구원 | Microwave filter with a movable shield having align windows |
KR20020022498A (en) * | 2000-09-20 | 2002-03-27 | 송재인 | A Dielectric Duplexer |
JP2002299907A (en) * | 2001-03-29 | 2002-10-11 | Tdk Corp | Shield plate and dielectric filter mounted with the same |
US6650202B2 (en) | 2001-11-03 | 2003-11-18 | Cts Corporation | Ceramic RF filter having improved third harmonic response |
US6879222B2 (en) | 2002-02-14 | 2005-04-12 | Cts Corporation | Reduced length metallized ceramic duplexer |
JP3809817B2 (en) * | 2002-12-19 | 2006-08-16 | 株式会社村田製作所 | Dielectric filter, dielectric duplexer, and communication device |
US7696845B2 (en) | 2005-06-23 | 2010-04-13 | Ube Industries, Ltd. | Dielectric filter for base station communication equipment |
KR100772620B1 (en) * | 2006-01-10 | 2007-11-02 | 주식회사 앱솔테크 | Metal case for electromagnetic fields suppression in monoblock dielectric filter for wireless communication |
KR101263222B1 (en) * | 2006-10-27 | 2013-05-10 | 시티에스 코포레이션 | Monoblock rf resonator/filter |
CN111342182B (en) * | 2020-03-06 | 2021-05-14 | 厦门松元电子有限公司 | Structural mixed different-wavelength resonant ceramic filter |
KR102256022B1 (en) | 2020-03-26 | 2021-05-25 | 모아컴코리아주식회사 | Monoblock Dielectric Filter |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4742562A (en) * | 1984-09-27 | 1988-05-03 | Motorola, Inc. | Single-block dual-passband ceramic filter useable with a transceiver |
JPS62137901A (en) * | 1985-12-12 | 1987-06-20 | Murata Mfg Co Ltd | Dielectric resonator |
US5103197A (en) * | 1989-06-09 | 1992-04-07 | Lk-Products Oy | Ceramic band-pass filter |
JPH0461501A (en) * | 1990-06-29 | 1992-02-27 | Kyocera Corp | Surface mount type dielectric filter |
FI87852C (en) * | 1991-04-12 | 1993-02-25 | Lk Products Oy | Tunable ceramic filter and method for its tuning |
US5218329A (en) * | 1992-03-25 | 1993-06-08 | Motorola, Inc. | Low profile ceramic filter with self aligning shield |
US5278527A (en) * | 1992-07-17 | 1994-01-11 | Motorola, Inc. | Dielectric filter and shield therefor |
-
1996
- 1996-07-09 US US08/677,154 patent/US5745018A/en not_active Expired - Lifetime
-
1997
- 1997-05-05 DK DK97925454T patent/DK0910875T3/en active
- 1997-05-05 KR KR1019997000114A patent/KR100323013B1/en not_active IP Right Cessation
- 1997-05-05 WO PCT/US1997/007559 patent/WO1998001918A1/en active IP Right Grant
- 1997-05-05 JP JP50518298A patent/JP3935951B2/en not_active Expired - Lifetime
- 1997-05-05 EP EP97925454A patent/EP0910875B1/en not_active Expired - Lifetime
- 1997-05-05 DE DE69714444T patent/DE69714444T2/en not_active Expired - Lifetime
Non-Patent Citations (2)
Title |
---|
No further relevant documents disclosed * |
See also references of WO9801918A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE69714444T2 (en) | 2003-04-24 |
EP0910875A1 (en) | 1999-04-28 |
KR100323013B1 (en) | 2002-02-09 |
EP0910875B1 (en) | 2002-07-31 |
WO1998001918A1 (en) | 1998-01-15 |
JP3935951B2 (en) | 2007-06-27 |
KR20000023660A (en) | 2000-04-25 |
DE69714444D1 (en) | 2002-09-05 |
JP2000515336A (en) | 2000-11-14 |
US5745018A (en) | 1998-04-28 |
DK0910875T3 (en) | 2002-11-18 |
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Legal Events
Date | Code | Title | Description |
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